Online Timer, Stopwatch & Countdown
A free online countdown timer with alarm, a stopwatch with laps, and a live countdown to any date — works full-screen and keeps running in the background.
How to use
- 1Pick Timer, Stopwatch or Countdown to a date.
- 2Set the time (or tap a preset) and press Start. An alarm sounds when the timer ends — keep the tab open.
Frequently asked questions
Will the timer keep running if I switch tabs?
Yes — it tracks real time, so it stays accurate in the background. The alarm plays when it ends as long as the tab is open.
Why is there no sound?
Browsers only allow sound after you interact with the page. Press Start (or the test sound button) once and check your volume.
Can I count down to a birthday or event?
Yes — use 'Countdown to a date', pick the date and time, and it shows the days, hours, minutes and seconds left.